package Thread;

public class ThreadDemo06 {
    private  static int sum = 0;
    public static void main(String[] args) throws InterruptedException {
        Object lock = new Object();
        Thread t1 = new Thread(()->{
            for (int i = 1; i <=50000 ; i++) {
                synchronized (lock){
                    sum++;
                }
            }
        });
        Thread t2 = new Thread(()->{
            for (int i = 1; i <=50000 ; i++) {
                synchronized (lock){
                    sum++;
                }
            }
        });
        t1.start();
        t2.start();

        t1.join();
        t2.join();
        System.out.println(sum);
    }
}
